TB 9-5120-212-35
Models PD1220 (and PD1220B)
Test instrument
Torque cell indications(ft-lbs)
indications (ft-
lbs)
Min
Max
200
194 (196)
206 (204)
300
291 (294)
309 (306)
750
727 (735)
773 (765)
1000
970 (980)
1030 (1020)
1175
1139 (1151)
1210 (1199)
(14) Turn T-handle ccw to release applied torque.
(15) Repeat (5) through (13) above for ccw torque.
b. Adjustments
(1) Remove sealant from adjustment screws A and B (fig. 4). Screws C and D (fig .4)
should not need adjustment unless TI is disassembled for repair or overhaul.
(2) Adjust screws A and B (fig. 4) slightly by backing one out and advancing the
other one-quarter turn at a time.
(3) Repeat (2) above and continue adjustment in small increments until indications
are within tolerance. When correctly adjusted, screws A, B, C, and D (fig. 4) should be just
touching bellows assemblies (R).
(4) Remove rubber indicator protective cover.
(5) Remove lens retaining ring and lens from TI indicator.
(6) Turn T-handle to obtain a 500 ft-lb indication on force/torque indicator. Slip dial
face to align pointer with 500 ft-lb graduation on dial face (R).
(7) Turn T-handle to relieve all applied torque from TI. Indicator must indicate
within green band at 0.
(8) Install lens, retaining ring, and protective cover.
(9) Repeat a(3) through (5) above. If TI indications are not within tolerance, repeat
b(2) through (8) above.
(10) Reseal adjustment screws with silicon rubber sealant.
13. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
13/(14 blank)
